Exploration off South Africa has entered a new era, with Total/CNR preparing to drill the country's first ultra-deepwater well in 1,450 m (4,757 ft) of water off the south coast. What was once a relative offshore backwater has become one of Africa’s hot spots, with all available near-shore and frontier deepwater licenses taken up.
To better understand the petroleum systems offshore Namibia, Petroleum Geo-Services, in association with NAMCOR, acquired two 2D surveys using the GeoStreamer with GeoSource dual-sensor broadband towed streamer system
Just across the Guanabara Bay from Rio de Janeiro and the global headquarters of Petrobras, SBM’s Brasa shipyard in Niteroi is completing its first project since opening in July 2012, the FPSO Cidade de Ilhabela. The remarkably urban location of the country’s only fully dedicated FPSO yard brings advantages as well as obstacles.
On March 18, 1938, production of oil from a well drilled by Pure Oil and Superior Oil in the Gulf of Mexico marked the birth of the offshore industry. A look back at both the Creole platform and others that followed after World War II provides a glimpse of history in the making.
Selected from the September 1970 issue of Offshore, the article describes Signal Exploration & Development Co.'s well, Ghana 10-1, the country's first oil discovery.
Offshore magazine recently met with Calvin V. Norton, senior vice president for Friede & Goldman Ltd., to get an overview of the evolution in technology in the offshore drilling market, and a sense of where the industry is headed in the next few years.
CGG and BOURBON signed an industry-first, five-year charter agreement for six purpose-designed seismic support vessels to be built and delivered in series. The new vessels, fitted with hybrid propulsion systems, are designed for multiple tasks including personnel transportation for crew rotations; bunkering operations; operational protection and assistance; and support during maintenance.
The Schlumberger ACTive live downhole coiled tubing (CT) was selected for real-time treatment monitoring of subsequent matrix acidizing jobs. The ACTive CT services convey live downhole measurements on fiber-optics, telemetry-enabled CT, and consist of a bottomhole assembly, surface electronics and interpretation software. Downhole data, including internal and external pressures, temperature, casing collar locator, gamma ray and distributed temperature sensing, can be used for various intervention operations independently. However, PEMEX was most interested in how these measurements can be used collectively to optimize acidizing.
A managed pressure drilling system, used in conjunction with a continuous circulating device to control wellbore pressure, helped an international E&P company successfully drill a difficult section of an deepwater exploration well in Ghana, West Africa, in 2012. The operator and service company Weatherford implemented the MicroFlux MPD Control System, a closed-loop system that enables accurate detection and effective management of minute fluid influxes in challenging wellbores.
Performing a casing exit to create a secondary wellbore involves a whipstock assembly to direct the mill toward the side of the existing casing where an exit is then milled. However, today’s wellbore requires advanced drilling assemblies with a range of technologies, including electronics and measuring devices that send data back to the operator. Drilling assemblies have necessarily gotten larger to accommodate these additional tools. The need for effective tools to address the size, length, and stiffness of newer drilling assemblies led Baker Hughes to develop the LongBow casing exit milling system.
Rotary steerable systems (RSS) have proven to be the go-to tools for precision directional drilling. Offshore surveyed the market and the result is a synopsis of the latest in rotary steerable technology from leading providers.
Get the latest detailed and comprehensive listing of rotary steerable systems available on the market.
The Ekofisk field, operated by ConocoPhillips Norway, is located in the southern part of the Norwegian North Sea. The field has been in operation for more than 40 years. Upon hook-up and commissioning in 1Q 2014, the new 2/4L accommodation platform will be the world’s largest offshore living quarters platform and will serve as a safe haven for the Ekofisk complex staff.
To date, platforms for cold regions typically have been designed using empirically based codes for loadings, with ice formations being modeled at scale in an ice basin using certain design criteria. However, a tool that will accurately predict ice behavior, to calculate loadings, and simulate the flow of ice as it encroaches on and ideally passes by a platform structure without a dangerous build-up is needed. Technip, Cervval, and Bureau Veritas are developing such an ice simulation program.
One partnership is working to develop economic solutions for marginal fields even in the 5-10 MMbbl range. This involves use of what they term "buoyant solutions" which can be unmanned, minimal facility production buoys or self-installing floating towers, both suited to rapid depletion of small fields and easy re-configuration for service elsewhere. Enegi Oil and ABTechnology, via their joint venture ABT Oil and Gas, are working on a first potential application on the 10-MMbbl Fyne field in the UK central North Sea.
The success of intensive subsea interventions projects rests on three big elements: a work-class ROV, external kits, and the linking component between them -- valve packs. Therefore, as deepwater projects continue to increase and intervention projects increase in complexity, the need to source valve packs will rise. Agnostic valve packs can continue to benefit current and future projects in these circumstances because they are universally applicable.
As autonomous underwater vehicle (AUV) operations increase in scale and complexity, the need for subsea persistence increases. The combination of Battelle and OceanWorks is developing resident AUV interface infrastructure that would make possible remote inspection and intervention without the need for surface support or complex umbilical handling systems.
The "2014 Survey of Offshore Non-Chemical Flow Assurance Solutions" poster, which can be found in this issue of Offshore, provides a comprehensive list of non-chemical solutions to flow assurance issues, and offers updated reference tools and design data for deepwater field development.
In response to this commemorative year, readers have been sharing personal accounts of experiences from the past 60 years, many of which are connected to industry milestones
This month, Infield Systems examines forecast capex in frontier Africa.
CGX Energy, Petronas Suriname, and Teikoku Oil (Suriname) have agreed to a rig-share arrangement in the offshore Guyana-Suriname basin.
Statoil has suffered more frustration with its latest well in the Barents Sea.
Crowley Maritime Corp. reports that its ocean-class tugs and 455 series high-deck-strength barges have successfully delivered, moored, and made storm safe the Jack/St. Malo semisubmersible floating production facility in the US Gulf of Mexico.
The Subsea Tieback Forum & Exhibition in the Henry B. Gonzalez Convention Center in San Antonio set another attendance record.
Transocean has awarded contracts worth about $1.24 billion to Sembcorp Marine subsidiary Jurong Shipyard for construction of two new ultra-deepwater drillships.
These are interesting times. Here's the United States, sitting on a humongous gas bubble, but without enough demand to sustain a decent price.
Benthic recently set a new record dive depth performed by its Portable Remotely Operated Drill (PROD) while working off the coast of Tanzania.
The recent boom in shale oil and gas production has brought a surge in demand for qualified experienced professionals.
Following huge East Africa discoveries offshore Mozambique and Tanzania, attention is creeping further north to Somalia, which may have geology similar to Yemen, a country with proved reserves of 2.7 Bbbl of oil.
Diamond Offshore Drilling has appointed Marc Edwards as president and CEO and as a member of the board of directors.
It is no secret that deepwater environments around the world offer the promise of significant hydrocarbon rewards, from an economic perspective.